Topic: Backup & Recovery >> Instance nad database!
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| Title: Instance nad database! |
| seema |
Posted: Sep 20, 2008 03:09:27 AM |
Total Post: 70
Joined: Jan, 2008
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| What is the difference between instance and database can both have the same name????? |
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 vino |
| Posted: Sep 20, 2008 03:22:30 AM |  |
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Total Post: 357
Joined: Aug, 2008
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Hi Seema,
The terms instance and database are closely related, but don't refer to the same thing. The database is the set of files where application data (the reason for a database) and meta data is stored.
An instance is the software (and memory) that Oracle uses to manipulate the data in the database. In order for the instance to be able to manipulate that data, the instance must open the database. A database can be opened (or mounted) by more than one instance, however, an instance can open at most one database.
You can have same name for the instance and database name. If should be changed only when you setup Standby database in the same host.
Regards..
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